MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Cys
Cysteine. Note that Cys does not stand for cystine. See also: Amino acid symbols
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Show more- Pulmonary acinus The ending of a tiny airway in the lung, where the alveoli (air sacs) are located. In anatomy, an acinus is a…
- Pickwickian syndrome The combination of obesity, somnolence (sleepiness), hypoventilation (underbreathing), and plethoric (red)…
- Valve, tricuspid One of the four heart valves, the tricuspid valve is the first one that blood encounters as it enters the…
- Organic dust toxic syndrome A flu-like illness due to the inhalation of grain dust with symptoms including fever, chest tightness, cough…
- Crack (drug) The street name given to cocaine that has been processed from cocaine hydrochloride to a ready-to-use free…
- Regulatory T cell A T cell (T lymphocyte) that regulates the activity of another T cell, usually by suppressing its activity…
- Heel stick A procedure in which a newborn baby's heel is pricked and then a small amount of the blood is collected…
- Thalassemia, alpha A blood disorder, thalassemia is not one disease but rather a group of disorders that have a single feature…
- ALS3 See: Amyotrophic lateral sclerosis 3
- PAPPA Pregnancy-associated plasma protein A
- Aspirin A good example of a tradename that entered into the language, Aspirin was once the Bayer trademark for…
- Shinbone The larger of the two bones in the lower leg (the smaller one being the fibula). The shinbone is anatomically…